CVE-2026-45245
Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored…
Does this matter?
Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own.
Description
Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness. Attackers can place local or private-network URLs behind hoverable links to route authenticated requests through the daemon, potentially accessing sensitive internal endpoints when users interact with attacker-controlled content.
- CVSS 4.0
- 4.6 MEDIUMCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.33% probability · 26th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918, CWE-940
- Affected
- steipete/summarize
- Source
- disclosure@vulncheck.com
References
- https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcbPatch
- https://github.com/steipete/summarize/pull/218Exploit, Issue Tracking, Patch
- https://github.com/steipete/summarize/releases/tag/v0.15.2Release Notes
- https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-eventsThird Party Advisory
- https://github.com/steipete/summarize/pull/218Exploit, Issue Tracking, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.